Hello Igor,
this sounds like a bug to me. The 5.6.x branch is not supported anymore, but after I a quick look I did not spotted any recent bugfixes in the modules that could match.
Cheers,
Henning
--
Henning Westerholt –
https://skalatan.de/blog/
Kamailio services –
https://gilawa.com
From: Igor Potjevlesch
via sr-users <sr-users@lists.kamailio.org>
Sent: Montag, 13. Januar 2025 13:40
To: sr-users@lists.kamailio.org
Cc: Igor Potjevlesch <igor.potjevlesch@gmail.com>
Subject: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls
Hello!
We are plotting the call success rate on each of our proxies.
Using the Kamailio snmpstats module, we try to obtain three counters to plot them on a graph:
Total Calls
Active Calls
Error Calls
Most of the time, everything works well, and we obtain sensible values:
snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n
.1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 309 -> Total Calls
.1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 95 -> Active Calls
.1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 214 -> Error calls
However, when our proxies are facing intense peaks of failed calls in a short time span, sometimes, the "Error Calls" counter returns a value higher than "Total Calls". As a result, "Active Calls" suddenly reaches a value
close to the maximum of a Gauge32 (because T o t a l C a l l s − E r r o r C a l l s < 0 ).
snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n
.1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 153 -> Total Calls
.1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 4294967226 -> Active Calls
.1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 223 -> Error calls
As a result, our graphs make no more sense.
We are currently running kamailio 5.6.4.
Any idea if it's a bug or a configuration issue?
Regards,
Igor.
